AMD EPYC 9645 's Advantages
Released 5 years and 5 months late
Higher specification of memory (6000 vs 2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (256MB vs 8MB)
More modern manufacturing process (3nm vs 14nm)
Xeon E 2274G 's Advantages
Higher base frequency (4GHz vs 2.3GHz)
Lower TDP (83W vs 320W)